Finding the Fourth Proportional to 2,130.53, 3,191.53 and 1,692.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.53 : 3,191.53 = 1,692.52 : x
2. Step 2: Convert to fraction form
   2,130.53/3,191.53 = 1,692.52/x
3. Step 3: Cross multiply
   2,130.53x = 3,191.53 × 1,692.52
4. Step 4: Simplify right side
   2,130.53x = 5,401,712.40
5. Step 5: Solve for x
   x = 5,401,712.40/2,130.53
6. Step 6: Final answer
   x = 2,535.39